and let’s assume the following content of Bar.php:
// Bar.phpnamespaceOtherDir;useSomeDir\Foo;// This now conflicts the class OtherDir\Foo
If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the
same runtime, you will see a PHP error such as the following:
PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as OtherDir/Foo.php does not necessarily have to be loaded and the
error is only triggered if it is loaded before OtherDir/Bar.php, this problem
might go unnoticed for a while. In order to prevent this error from surfacing,
you must import the namespace with a different alias:
// Bar.phpnamespaceOtherDir;useSomeDir\FooasSomeDirFoo;// There is no conflict anymore.
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5
use function header_remove;
6
use function headers_list;
7
use function headers_sent;
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use function http_response_code;
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10
/**
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* children class to add and remove the header
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*
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* @since 3.3.0
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*
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* @package Redaxscript
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* @category Header
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* @author Henry Ruhs
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*/
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class Header
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{
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/**
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* init the class
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*
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* @since 3.3.0
26
*/
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1
public static function init() : void
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{
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1
self::add(
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[
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1
'X-Content-Type-Options: nosniff',
33
'X-Frame-Options: sameorigin',
34
'X-XSS-Protection: 1; mode=block'
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]);
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1
self::remove('X-Powered-By');
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1
}
38
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/**
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* add the header
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*
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* @since 3.3.0
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*
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* @param string|array $header
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* @param bool $replace
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*
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* @return bool
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*/
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5
public static function add($header = null, bool $replace = true) : bool
51
{
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5
if (!self::isSent())
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{
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4
foreach ((array)$header as $value)
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{
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4
header($value, $replace);
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}
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4
return true;
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}
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1
return false;
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}
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/**
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* remove the header
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*
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* @since 3.3.0
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*
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* @param string|array $header
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*
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* @return bool
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*/
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74
2
public static function remove($header = null) : bool
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{
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2
if (!self::isSent())
77
{
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1
foreach ((array)$header as $value)
79
{
80
1
header_remove($value);
81
}
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1
return true;
83
}
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1
return false;
85
}
86
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/**
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* is header sent
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*
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* @since 3.3.0
91
*
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* @return bool
93
*/
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95
6
public static function isSent() : bool
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{
97
6
return headers_sent();
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}
99
100
/**
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* get the header array
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*
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* @since 3.3.0
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*
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* @return array
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*/
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public static function getArray() : array
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{
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return headers_list();
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}
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/**
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* response code
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*
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* @since 4.0.0
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*
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* @param int $code
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*
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* @return int
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*/
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1
public static function responseCode(int $code = null) : int
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{
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1
return http_response_code($code);
126
}
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/**
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* redirect to location
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*
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* @since 3.3.0
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*
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* @param string $location
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*
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* @return bool
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*/
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1
public static function doRedirect(string $location = null) : bool
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{
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1
return self::add('Location: ' . $location);
141
}
142
143
/**
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* content type
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*
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* @since 3.3.0
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*
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* @param string $type
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*
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* @return bool
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*/
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153
1
public static function contentType(string $type = null) : bool
redaxscript /
redaxscript
redaxmedia
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: